package com.itheima.a02;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.boot.autoconfigure.web.servlet.DispatcherServletRegistrationBean;
import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext;
import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.FileSystemResource;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author: AirMan
 * @date: 2025/4/8 18:42
 * @description:
 */
public class MyA02 {

    private static final Logger log = LoggerFactory.getLogger(MyA02.class);

    public static void main(String[] args) {
        testClassPathXmlApplicationContext();
//        testFileSystemXmlApplicationContext();
//        testAnnotationConfigApplicationContext();
        testAnnotationConfigServletWebServerApplicationContext();
        // ClassPathXmlApplicationContext和FileSystemXmlApplicationContext的 原理

    /*    DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory();

        for (String name : beanFactory.getBeanDefinitionNames()) {
            System.out.println(name);
        }
        System.out.println("----------");

        XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader(beanFactory);
        reader.loadBeanDefinitions(new ClassPathResource("myb01.xml"));

        for (String name : beanFactory.getBeanDefinitionNames()) {
            System.out.println(name);
        }

        System.out.println(beanFactory.getBean(Bean2.class).getBean1());*/

    }

    private static void testClassPathXmlApplicationContext() {
        ClassPathXmlApplicationContext context =
                new ClassPathXmlApplicationContext("myb01.xml");

        for (String name : context.getBeanDefinitionNames()) {
            System.out.println(name);
        }
    }

    private static void testFileSystemXmlApplicationContext() {
        FileSystemXmlApplicationContext context =
                new FileSystemXmlApplicationContext(
                        "F:\\A-Project\\Java\\spring-theory\\show\\src\\main\\resources\\myb01.xml");
        for (String name : context.getBeanDefinitionNames()) {
            System.out.println(name);
        }

    }

    private static void testAnnotationConfigApplicationContext(){
        AnnotationConfigApplicationContext context =
                new AnnotationConfigApplicationContext(Config.class);

        for (String name : context.getBeanDefinitionNames()) {
            System.out.println(name);
        }

        System.out.println(context.getBean(Bean2.class).getBean1());

    }

    private static void testAnnotationConfigServletWebServerApplicationContext(){
        AnnotationConfigServletWebServerApplicationContext context =
                new AnnotationConfigServletWebServerApplicationContext(WebConfig.class);

        for (String name : context.getBeanDefinitionNames()) {
            System.out.println(name);
        }

    }

    @Configuration
    static class WebConfig{
        @Bean
        public ServletWebServerFactory servletWebServerFactory(){
            return new TomcatServletWebServerFactory();
        }
        @Bean
        public DispatcherServlet dispatcherServlet(){
            return new DispatcherServlet();
        }
        @Bean
        public DispatcherServletRegistrationBean dispatcherServletRegistrationBean(DispatcherServlet dispatcherServlet){
            return new DispatcherServletRegistrationBean(dispatcherServlet, "/");
        }
        @Bean("/hello")
        public Controller controller1(){
            return new Controller() {
                @Override
                public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
                    response.getWriter().println("ApplicationContext!");
                    return null;
                }
            };
        }
    }

    @Configuration
    static class Config {
        @Bean
        public Bean1 bean1() {
            return new Bean1();
        }

        @Bean
        public Bean2 bean2(Bean1 bean1) {
            Bean2 bean2 = new Bean2();
            bean2.setBean1(bean1);
            return bean2;
        }
    }

    static class Bean1 {
    }

    static class Bean2 {

        private Bean1 bean1;

        public void setBean1(Bean1 bean1) {
            this.bean1 = bean1;
        }

        public Bean1 getBean1() {
            return bean1;
        }
    }
}
